diff --git a/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java b/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java
index d8922f01001f..a23cdb996000 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java
@@ -734,7 +734,7 @@ public class CompletionProgressIndicator extends ProgressIndicatorBase implement
     final MessageBusConnection connection = project.getMessageBus().connect();
     connection.subscribe(EditorHintListener.TOPIC, listener);
     assert text != null;
-    HintManager.getInstance().showErrorHint(editor, text, HintManager.UNDER);
+    HintManager.getInstance().showErrorHint(editor, StringUtil.escapeXml(text), HintManager.UNDER);
     connection.disconnect();
     return result[0];
   }